Exclusive to PSP, this sequel to Sonic's 2D action-platformer features all-new jostling controls for tighter competition and a brand new Battle mode, allowing you to play with a friend in six different multiplayer challenges while using Game Sharing.

With extra playable characters, including Miles "Tails" Prower, 12 new stages, and upgraded signature moves for each character, the enhanced Rivals experience brings a whole new level of handheld fun to PSP.